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having problem with trane rtac 200 ton ,hex code 5fd comm loss:suction pressure cprsr 2a ,this occured after lightning storm. is this most likely a sensor. getting stupid as i get older, what is MP and funtional ID

having problem with trane rtac 200 ton ,hex code 5fd comm loss:suction pressure cprsr 2a ,this occured after lightning storm. is this most likely a sensor. getting stupid as i get older, what is MP and funtional ID

Comm loss could be an issue with either your transducer or the comms wiring/connectors. You need to connect with TechView software to diagnose correctly.

MP is the CH530 microprocessor, all the CH530 LLIDS (Low Level Inteligent Devices)/sensors, transducers, I/O boards, EXV,s etc connect to the MP via a comms bus. Functional ID and node number is assigned to the devices during binding (TechView process for connection to the comms bus). Functional ID is identification of the LLID, e.g Suction Pressure Transducer CPSR 2A.

The attached link to Trane.com will provide some reading for a better explanation and guidance on troubleshooting